In a special ten-part series, Beth Johnson and Franck Marchis from the SETI Institute discuss the best episode from each season of Stargate SG-1, as chosen by the fans at GateWorld (https://www.gateworld.net/​​). From season seven, episodes 21 and 22: "Lost City".

WARNING: This video is full of spoilers. And science. But also spoilers. You have definitely been warned.